<template>
  <div :id="id" :class="className" :style="{height:height,width:width}" />
</template>

<script>
import resize from './mixins/resize'

export default {
  name: 'ComponentChartKeyboard',
  mixins: [resize]
}
</script>

<script setup>
import { defineProps, ref, onMounted, onBeforeUnmount, markRaw, nextTick } from 'vue'

import * as echarts from 'echarts'

const props = defineProps({
  className: {
    type: String,
    default: 'chart'
  },
  id: {
    type: String,
    default: 'chart'
  },
  width: {
    type: String,
    default: '200px'
  },
  height: {
    type: String,
    default: '200px'
  }
})

let chart = ref(null)

const initChart = () => {
  chart = markRaw(echarts.init(document.getElementById(props.id)))

  const xAxisData = []
  const data = []
  const data2 = []
  for (let i = 0; i < 50; i++) {
    xAxisData.push(i)
    data.push((Math.sin(i / 5) * (i / 5 - 10) + i / 6) * 5)
    data2.push((Math.sin(i / 5) * (i / 5 + 10) + i / 6) * 3)
  }

  chart.setOption({
    backgroundColor: '#08263a',
    grid: {
      left: '5%',
      right: '5%'
    },
    xAxis: [{
      show: false,
      data: xAxisData
    }, {
      show: false,
      data: xAxisData
    }],
    visualMap: {
      show: false,
      min: 0,
      max: 50,
      dimension: 0,
      inRange: {
        color: ['#4a657a', '#308e92', '#b1cfa5', '#f5d69f', '#f5898b', '#ef5055']
      }
    },
    yAxis: {
      axisLine: {
        show: false
      },
      axisLabel: {
        color: '#4a657a'
      },
      splitLine: {
        show: true,
        lineStyle: {
          color: '#08263f'
        }
      },
      axisTick: {
        show: false
      }
    },
    series: [{
      name: 'back',
      type: 'bar',
      data: data2,
      z: 1,
      itemStyle: {
        opacity: 0.4,
        borderRadius: 5,
        shadowBlur: 3,
        shadowColor: '#111'
      }
    }, {
      name: 'Simulate Shadow',
      type: 'line',
      data,
      z: 2,
      showSymbol: false,
      animationDelay: 0,
      animationEasing: 'linear',
      animationDuration: 1200,
      lineStyle: {
        color: 'transparent'
      },
      areaStyle: {
        color: '#08263a',
        shadowBlur: 50,
        shadowColor: '#000'
      }
    }, {
      name: 'front',
      type: 'bar',
      data,
      xAxisIndex: 1,
      z: 3,
      itemStyle: {
        borderRadius: 5
      }
    }],
    animationEasing: 'elasticOut',
    animationEasingUpdate: 'elasticOut',
    animationDelay(idx) {
      return idx * 20
    },
    animationDelayUpdate(idx) {
      return idx * 20
    }
  })
}

onMounted(() => {
  nextTick(() => {
    initChart()
  })
})

onBeforeUnmount(() => {
  if (!chart) {
    return
  }
  chart.dispose()
  chart = null
})

</script>

